CN105553087A

CN105553087A - Apparatus and method for transmitting power to equipment with power line

Info

Publication number: CN105553087A
Application number: CN201510854800.4A
Authority: CN
Inventors: 史蒂夫.查普尔; 威廉.帕乔德
Original assignee: Zonit Structured Solutions LLC
Current assignee: Zonit Structured Solutions LLC
Priority date: 2007-03-14
Filing date: 2008-03-14
Publication date: 2016-05-04
Also published as: US8174149B2; CA2681101C; US20100141040A1; US9997957B2; US20130093249A1; WO2008113049A1; CA2681101A1; CN101682200A; US20150076912A1

Abstract

A system and method, i.e., a utility (50) for providing power to an electrically powered device from alternate, redundant power sources via a single power cord. The utility (50) is operable to provide redundant power to an electrical device having a power cord terminating in a standard plug. The utility (50) is operable to sense an interruption of power from one power source, and to switch a connection to another power source in response to the interruption. The housing (52) of the utility (50) may be configured to match the form factor of a standard (e.g., NEMA or other electrical standard) duplex receptacle unit. The utility may be incorporated into a standard outlet box or may plug into a standard outlet box.

Description

For delivering power to the apparatus and method of the equipment with power line

The divisional application that the application is the applying date is on March 14th, 2008, application number is 200880016145.3 (international application no is PCT/US2008/057144), denomination of invention is the application for a patent for invention of " Nema auto-switching duplex module ".

The cross reference of related application

The name of the application's request submission on March 14th, 2007 is called No. 60/894848th, the U.S. Provisional Application priority under 35 U.S.C. 119 of " NEMAAUTO-SWITCHINGDUPLEXMODULE ", and its content is incorporated into this as presented in full.

Technical field

The application relates to the apparatus and method for delivering power to the equipment with the power line ending at standard plug.

Background technology

Be often such situation: Data-Handing Equipment and Medical Devices only have a power supply, and therefore only there is a power line.The equipment of these types is adopted in crucial application of being everlasting.Such as, the life of personnel wherein medical equipment may be used when may depend on the ongoing operation of Medical Devices.In addition, may the cost of " downtime " wherein may be extremely high various systems in use electronic data processing (EDP) to equip.Therefore, expect to minimize the downtime making these equipment.

One of the most significant reason of the downtime of electronics is loss of power.This may occur due to the fault of assembly in the fault of assembly in the error of people, equipment or the power delivery path of leading to equipment.In order to provide better reliability, in the application of these " mission criticals ", provide redundancy (redundancy) frequently by the system implementing greatly to increase the complexity of application.In addition, the frequent price of this redundancy is high, this is because each system will have dual stand-by power supply usually, to provide electric power when the power breakdown carrying out automatic power supply.

For this background, develop automatic switchover duplex module of the present invention.

Summary of the invention

The present invention is directed to a kind of system, this system be used for via wall scroll power line from substitute, redundant power provides electric power to the equipment (such as such as critical network device, critical medical device or other crucial or non-critical devices) taking electricity as power.In this way, the conventional electrical devices with wall scroll power line can be made to realize higher reliability.In addition, such reliability can be realized by suitably configuring conventional power source outlet (outlet), and not need extra power line.Therefore, can simply and implement the present invention with minimum cost, enable higher reliability in many environments thus.

According to an aspect of the present invention, the device for delivering power to the equipment with the power line ending at standard plug is provided.This device comprises the first standard socket (receptacle) for receiving standard plug, for first and second end pieces (terminalassembly) of the first and second corresponding power interconnection, for selectively by switch that the first standard socket and first end parts or the second end part interconnect.In this way, single standard socket allows access substitute electric power, to obtain the reliability of raising.

Such as, this switch can when power breakdown automatic operation.That is, this switch being operable comes from the power breakdown of one of power supply for sensing, and for switching the connection of socket in response to this interruption.In addition, this device can be configured to the form factor (formfactor) of the standard that is similar to (such as NEMA (National Electric Manufacture industry association) or other electrical standard) duplex receptacle unit.That is, this device can be incorporated to standard outlet box (outletbox), or can standard outlet box be inserted into.In this, this device can comprise the second standard socket, and this second standard socket also can switch between two power supplys.In one embodiment, the traditional electrical source plate (powerstrip) of this device together with suitably configuration can be used.Such as, when power panel provides the outlet be associated with the first and second power supplys, can this device be inserted in power panel, to provide automatic switchover socket.Or, power panel can be inserted into automatic switchover socket, make power panel provide multiple automatic switchover socket, to provide electric power to various electric equipment.

Automatic switching module can be implemented in the skinny device being suitable for the back side being deployed in the equipment that frame is installed.Such as, be called in No. 60/894842nd, the U.S. Provisional Application of " AUTOMATICTRANSFERSWITCHMODULE " in the name being incorporated into this as a reference, by the mode of one group of line (cord) configured as " y ", the single line from equipment is connected to two power panels be associated with two power supplys.As may be expected, automatic switching module can be used be provided in the automatic switchover (such as at " y " infall) between two sources, to implement automatic switchover at this equipment place instead of at frame aspect place.

According to a further aspect in the invention, a kind of method for operating automatic switchover socket is provided.The method comprises the first standard socket being provided for receiving standard plug, is wherein associated with the first and second power supplys by this socket selectively via switch.Automatic switching apparatus sensing is from the power breakdown of one of power supply, and in response to this interruption, switch transition (cycle) is to provide the electric power coming from another source via standard socket.

According to a further aspect in the invention, the method for using automatic switchover socket is provided.The method comprises provides module, the switch that this module comprises the modular jack for receiving standard plug and connects for the power supply of handover module socket.The method also comprises standard plug is connected to this modular jack to the first and second power supplys by this model calling.

Such as, can by provide be configured to from the first and second power supplys provide electric power standard duplex electrical outlet and by model calling to this standard outlet, by model calling to the first and second power supplys.Similarly, can by provide the power panel with socket with provide electric power from the first and second power supplys and by model calling to this power panel, by model calling to the first and second power supplys.By standard plug is inserted into socket, standard plug can be connected to module, or can connection standard plug indirectly.

Accompanying drawing explanation

Fig. 1 illustrates the block diagram of the application of automatic switching module of the present invention.

Fig. 2 illustrates example automatic switching module of the present invention.

Fig. 3 illustrates another example automatic switching module of the present invention.

Fig. 4 illustrates another example automatic switching module of the present invention.

Fig. 5 A illustrates the application of the automatic switching module shown in Fig. 4.

Fig. 5 B illustrates the application of example automatic switching module.

Fig. 6 illustrates the application of the automatic switching module shown in Fig. 2.

Fig. 7 illustrates the Another application of the automatic switching module shown in Fig. 4.

Fig. 8 illustrates the schematic diagram of example automatic switching module.

Embodiment

Although the present invention allows various amendment and replaceable form, show specific embodiment of the present invention in an illustrative manner in the accompanying drawings, and herein it is described in detail.But, it is to be understood that and be not intended to limit the invention to particular forms disclosed, but the present invention to contain all modifications, equivalent and the Res fungibiles that fall in the scope of the invention defined by the claims and spirit.

Fig. 1 illustrates the block diagram of the application of automatic switchover duplex module 1 of the present invention.Module 1 can be configured to the form factor of match-on criterion (such as NEMA or other electrical standard) duplex receptacle unit.That is, module 1 can be incorporated to standard outlet box, or can standard outlet box be inserted into.Module 1 can be couple to one or more electronic equipment (such as electronic equipment 7,9), described one or more electronic equipment is each can comprise the wall scroll power line ending at standard plug.The equipment of this electronic equipment can be any with electricity be power, such as critical network device, critical medical device or other crucial or non-critical devices.Module 1 can comprise the standard socket of one or more standard plug for receiving electronic equipment 7 and 9.In addition, module 1 can be adapted for the end pieces comprising and allow to be couple to power supply 3 and power supply 5 or lead-in wire is connected.

Module 1 can comprise for selectively by logic that standard socket and the end pieces that is couple to power supply 3 or power supply 5 interconnect.In this, for each standard socket and thus each electronic equipment be equipped with the access for substitute electric power, to obtain the reliability of raising.For selectively the logic that standard socket and end pieces interconnect being comprised switch, this switch being operable is used for automatically changing when power breakdown.That is, this switch being operable for sensing the power breakdown on one of power supply (such as power supply 3), and for carrying out the connection of switching standards socket in response to this interruption.

Fig. 2 illustrates the automatic switching module 10 of the form factor being configured to match-on criterion (such as NEMA or other electrical standard) duplex receptacle unit.The shell 12 of module 10 can comprise the end pieces (such as plug 16 and 18) being configured to be inserted into standard duplex receptacle unit.Module 10 can also comprise standard socket 14, for receiving the standard plug from the equipment (such as the network equipment, Medical Devices etc.) taking electricity as power.Inner at shell 12, can selectively the electrical connection 24 of socket 14 be interconnected with the electrical connection 20 and 22 of plug 16 and 18 respectively via the switching device shifter represented by arrow 28 and electrical connection 26.Although electrical connection 20,22,24,26 is depicted as single line, should easy understand they usually can comprise multiple electric conductor (such as line, the neutral line (neutral), ground wire etc.).

In operation, plug 16 and 18 can be inserted into standard-sized duplex receptacle unit, described standard-sized duplex receptacle unit is configured to provide electric power at the first socket place from the first power supply (power supply 3 of such as Fig. 1), and provides electric power at the second socket place from second source (power supply 5 of such as Fig. 1).In this way, module 10 can be used to and receives electric power at plug 16 place from a power supply, and receives electric power at plug 18 place from another power supply.In addition, can be that the equipment of power is inserted into module 10 at standard socket 14 place with electricity by what there is the wall scroll power line that ends at standard plug.

Switching device shifter 28 can be used to when there being enough available electric power (such as not having power breakdown on the power supply being couple to plug 16) at plug 16 place, electrical connection 26 is coupled between the electrical connection 24 of socket 14 and the electrical connection 20 of plug 16.Switching device shifter 28 also can be used to the sensing power breakdown of electrical connection 20 place (such as due to from the power breakdown of power supply being coupled to plug 16), and then for electrical connection 26 being automatically coupled to the electrical connection 24 of standard socket 14 with between the electrical connection 22 of plug 18 being coupled to the power supply be separated.In this way, although be coupled to the power breakdown at the power supply place of plug 16, the electronic equipment being inserted into the socket 14 of module 10 can continue to receive electric power.Switching device shifter 28 can be any equipment being suitable for this application.Such as, as below about Fig. 3 discuss, switching device shifter 28 can comprise one or more relay switch.In addition, switching device shifter 28 can comprise one or more solid condition apparatus.Those skilled in the art will readily appreciate that and various types of circuit can be used to realize the function of switching device shifter 28.

Switching device shifter 28 also can be used to the power recovery at sensing plug 16 place, and when electric power gets back to acceptable level, electrical connection 26 is switched back the power supply being coupled to plug 16.In this configuration, the power supply being coupled to plug 16 can be appointed as main power source, and the power supply being coupled to plug 18 can serve as secondary power sources.In another configuration, switching device shifter 28 can be used to sensing both plugs 16 and 18 and locates voltage level, and for only changing when power breakdown occurs at the power supply place being coupled to socket 14.That is, in this configuration, power supply act as alternate source, instead of main and secondary power sources.

Should be appreciated that: can easily revise the line of powering to standard wall duplex receptacles during building, the branch circuit of required separation (separate) to be supplied to module 10 (that is, be coupled to a branch circuit of one of the right socket of duplex and be coupled to the alternative branch circuit of the right complimentary socket of duplex).Current available duplex receptacle is designed to allow the electrically separated of each socket in the right socket of duplex.Thus, can by required branch circuit being transported to the position of expectation and the current configuration revising existing duplex receptacle completes the wire location of improvement.In this, then amended conventional socket can be used to power for module 10, for its expection object.

Fig. 3 illustrates the module 10 shown in Fig. 2, and wherein switching device shifter 28 comprises relay 30.In operation, relay 30 can be couple to electrical connection 20 via wire 32.Relay 30 can be used to voltage at plug 16 place higher than predetermined threshold time, by the controlling organization represented by dotted line 34, electrical connection 24 is couple to electrical connection 20 via electrical connection 26.That is, the voltage being electrically connected 20 places can make relay 30 " energising ", makes controlling organization 34 couple connection 26 between connection 20 and 24.Relay 30 also can be used to the voltage at sensing plug 16 place, and changes switching device shifter 28 in response to power breakdown by coupling electrical connection 26 between electrical connection 22 and 24.In this way, although be coupled to the power breakdown at the power supply place of plug 16, the electric equipment being inserted into socket 14 will receive lasting electric power.In other words, electric equipment is just receiving electric power from when being coupled to the power breakdown of power supply of plug 16 from the power supply being coupled to plug 18.

Fig. 4 illustrates another embodiment of automatic switchover duplex module 50.In this embodiment, the shell 52 of module 50 comprises two standard sockets 54 and 55, for receiving standard plug from the electronic equipment with the power line ending at standard plug.In addition, similar with the module 10 of Fig. 2, shell 52 can comprise the standard plug 56 and 58 being configured to be inserted into standard receptacle unit (such as NEMA or other electrical standard).Socket 54 and 55 can be couple to electrical connection 64, can selectively this electrical connection 64 be interconnected by switching device shifter 68 and the electrical connection 60 and 62 and substitute electric power being coupled to plug 56 and 58.In this, automatic switchover duplex module 50 is two and receives the power electrical apparatus of redundant power, and it can enable higher reliability in many environments.In addition, when being coupled to standard duplex receptacle, module 50 operates to maintain socket number in branch circuit.That is, every receptacle power density of designed branch circuit is remained.

Fig. 5 A illustrates the example application of the automatic switching module 50 shown in Fig. 4.As directed, the power line 51 and 53 (now illustrating) of two electric equipments can be inserted in the standard socket 54 and 55 of the shell 52 of module 50.Then, the plug 56 and 58 of module 50 can be inserted into the standard socket 72 and 74 of standard duplex receptacle unit 70 (such as NEMA or other electrical standard).Standard receptacle unit 70 can comprise the end pieces 76 and 78 being adapted to be and coupling with two power supplys 80 and 82.In this way, can by automatic switchover duplex module 50 for two electric equipments ending at single standard plug provide redundant power.

Fig. 5 B illustrates the example application of automatic switchover duplex module 40.In this embodiment, module 40 is incorporated to the form factor of standard duplex receptacle unit (such as NEMA or other electrical standard).In this, the power line 51 and 53 of two electric equipment (not shown) can be inserted into the standard socket 43 and 44 of module 40.In addition, module 40 can comprise the end pieces 41 and 42 for being couple to power supply 80 and 82 respectively.In this configuration, by two electric equipments are connected with module 40, for these two electric equipments provide redundant power.Advantageously, module 40 can be installed on any position (such as, wall, frame, power panel etc.) wherein can installing traditional standard receptacle unit.

Fig. 6 illustrates the example application of the automatic switching module 10 shown in Fig. 2.In this application, by end pieces 16 and 18, module 10 can be couple to two power supplys 95 and 96, described end pieces 16 and 18 can be standard plug or other suitable coupled connection mechanism any.In addition, standard receptacle unit (such as NEMA or other electrical standard) can be comprised between module 10 and power supply 95 and 96, couple to provide.The traditional electrical source plate 90 comprising multiple socket can be couple to module 10 at socket 14 place.Power panel 90 can comprise the power line 92 ending at standard plug 94, to provide required the coupling with module 10.In this configuration, module 10 is done to provide redundant power in order to the multiple sockets to power panel 90.As scrutable, multiple electric equipment can be inserted into power panel 90, and utilize redundant power 95 and 96 to operate.

Fig. 7 also illustrates another example application of the automatic switchover duplex module 50 of Fig. 4.As directed, power panel 100 is adapted for provide and organizes duplex receptacle (such as four groups of duplex receptacles) more.The Part I 106 (i.e. the top row of socket) of power panel can comprise the socket being coupled to power supply 110 by power line 102 and standard plug 103.Similar, the Part II 108 (i.e. the bottom line of socket) of power panel 100 can be couple to second source 112 by power line 104 and plug 105.In addition, automatic switchover duplex module 50 can be inserted into power panel 100, make each the socket be inserted into by module 50 plug in 106 parts and 108 parts.In this way, two electric equipments can be inserted into the socket 54 and 55 of module 50, and from power supply 110 and 112 for these two electric equipments provide redundant power.As scrutable, multiple module 50 can be inserted into power panel 90 to provide the extra source of redundant power.In addition, the automatic switching control equipment of module 50 can be directly incorporated into power panel 90, make power panel 90 self provide redundant power from power supply 110 and 112.

Fig. 8 illustrates the schematic diagram of another embodiment of automatic switching module 150.The basic function of module 150 is that facility connects in main power source connection 152 and substitute electric power the electric power that fast transfer (transfer) between 154 is transported to load electric connection 172.Such as, module 150 can being less than about 15 milliseconds, transfer electrical power during time period of being preferably less than 10 milliseconds.Usually, when the electrical power stabilization at main power source place, module 150 operates and is used for main power source connection 152 to be couple to load electric connection 172.In addition, in response to being coupled to the power breakdown at power supply place that main power source connects 152, module 150 can be used to the substitute electric power connection 154 load electric connection 172 being couple to and being connected to substitute electric power, connect the power recovery at 152 places until main power source till.Module 150 can be used to the various power quality features in sensing main power source connection 152, and connects for switching electric power in response to these features.The power quality features sensed by module 150 can comprise interruption, voltage drop (sag), voltage fluctuation, frequency change etc.Special characteristic and the operation of module 150 are described below in detail.

Module 150 comprises two single-pole double throw (SPDT) relays 166 and 168, with facility transfer electrical power between main power source connects 152 and substitute electric power connects 154.As directed, the live wire (hotconductor) 156 of main power source connection 152 is couple to the live wire 170 that load electric connects 172 by relay 166.The live wire node (hotnode) 158 of substitute electric power 154 is also connected 172 by relay 166 live wire 170 with load electric couples.Similarly, the center line 157,159 and the substitute electric power connection 154 that also main power source are connected 152 are couple to by relay 168 center line 171 that load electric connects 172 respectively.

Module 150 also comprises the Three S's PDT relay 164 being arranged in main power source and connecting the path of 152.Relay 164 works to be protected from the less desirable effect being called as " arc carryover (arccarryover) " here.The electric current of the contact by relay is large must be enough to make the electric arc produced by connecting loaded contact before disconnecting to continue till (reach) alternate source is arrived in contact time, there is arc carryover.This can cause effective short circuit between two power supplys, and described short circuit can cause electric current to increase rapidly under given conditions, and this may damage equipment or circuit brake is tripped (trip), thus causes system-down.A kind of mode reducing the probability of arc carryover is the enough Separations guaranteed between primary input relay contact and secondary relay contact.But in the application of limited space, the size restrictions of module 150 may hamper the use of the relay with enough Separations.

In order to reduce the probability of arc carryover, connecting at main power source in the path of 152 and introducing relay 164 as disconnection relay.That is, the alternative pole (alternatepole) of relay 164 is not connected.Relay 164 by this way to work with the synchronized relation of relay 166 and 168 timing, make from a power supply to during the metastasis sequence of another power supply, disconnect relay 164 during transfer relay 166 and 168 changes to the short time period of another position from a position, make primary power path and secondary electrical path depart from (disengage).By the timing of the action disconnecting relay 164 is offset a little with the switching action of transfer relay 166 and 168, can ensure will pass through zero current level at migration period period AC electric power.This significantly increases the arc suppression capability of module 150 together with the interpolation of the 3rd Separation provided by relay 164.In order to timing and the driving of control relay 164,166 and 168, provide relay driver and sync section 184.This part 184 can comprise various analog-and digital-electronic installation, to drive relay 164,166 and 168.Directly start (actuation) relative to from power supply, use electronic installation to drive relay to have advantage as discussed below.

In order to be protected from arc carryover further, connecting at substitute electric power in the path of 154 and having settled fuse or circuit breaker 162.Should be appreciated that: except the path that substitute electric power connects 154, can also connect in the path of 152 at main power source and apply fuse or circuit breaker, or replace substitute electric power connect 154 path, main power source connect 152 path in apply fuse or circuit breaker.Fuse or circuit breaker 162 can be the fast acting device that can be used to open circuit before branch circuit breaker open circuit, and this can stop localized overload conditions to affect the equipment of other attachment on same branch circuit.In one embodiment, use the quick acting fuse of the Power Limitation of 20A, but also can substitute other value of use or other circuit brake, to be provided in the protection of the expectation in the various application of module 150.In addition, circuit breaker 162 can be (resettable) that can reset.

Inventor also recognizes: after the interruption of main power source, from substitute electric power connect 154 turn back to main power source connect 152 electric power time, may expect introduce postpone.In this, in main power source intermittent (intermittent) situation or under the low-voltage condition that relay may be caused unnecessarily to shift back and forth, postpone to help the number reducing conversion.Exemplarily, the moment that can turn back to the electric power of main power source from main power source stable moment to module 150 from substitute electric power introduces the delay of three to five seconds.In order to provide this to postpone, voltage sensing being provided and returning transfer lag part 180.This part 180 can be used to and is connected 152 place sensing voltages with 175 at main power source via node 174.Once this part 180 determines that the voltage at main power source 152 place can be used for predetermined time section (such as 3 to 5 seconds), signal is just supplied to relay driver and sync section 184 by this part 180.As directed, together with 180 parts being coupled in 184 parts by optical isolator 182, this optical isolator 182 works and is connected 154 electric isolution so that main power source is connected 152 with substitute electric power.After receiving a signal from the section 180, relay driver and sync section 184 can use electronic control circuit to activate relay 164,166 and 168, and described relay 164,166 and 168 then connects 154 from substitute electric power and turns back to the electric power that main power source connects 152.Should be appreciated that: 180 parts and 184 parts can comprise various numeral and/or simulated assembly, to realize voltage sensing and delay feature.Such as, in one embodiment, 180 parts comprise digital clock.

Replace directly being started by main power source and using electronic control circuit can provide significant advantage to drive relay 164,166 and 168 by 184 parts.In embodiment above, connect (energize) relay by main power source, make the main power source when main power source is stablized remain connected to load electric and connect.When primary power source failure, relay is not kept, and therefore discharges, and it connects loads to substitute electric power then.When turning back to the electric power of main power source, relay demand working, therefore reconnects to main power source by load.As discussed above, this configuration does not allow to introduce when getting back to main power source from substitute electric power transfer to postpone.In addition, this configuration requirement, at most of time (that is, when stablizing whenever main power source) engage relay, causes unnecessary power consumption and reduces relay life expectancy, which reducing the global reliability of module 150.

In order to solve the problem, connect 154 by substitute electric power and driving relay 164,166,168.This is connected 154 and complete by relay driver section 184 is couple to substitute electric power by node 176 and 177.Therefore, foregoing electronic relay circuit can use now can substitute electric power operate during section in time of delay.In addition, can only engage relay 164,166 and 168 during the power-off time section of main power source 152, this may be relatively rare event.Therefore, this configuration can extend the possible life expectancy of relay significantly, reduces power consumption, and improves the global reliability of module 150.Such as, in one embodiment, the average power dissipation of module 150 is less than about 200 milliwatts, and is preferably less than about 125 milliwatts.

Although not shown, should be appreciated that: can across input or output lead to couple various types of circuit brake (such as rheostat, Zener diode etc.), to limit due to outside or switch the due to voltage spikes that transient state causes.And, if need or expect, various types of line filter can be comprised.

Although illustrate in detail in accompanying drawing and foregoing description and describe the present invention, such illustration and describe should by proportionately taken as exemplary and nonrestrictive.Such as, the specific embodiment above described can combine with the embodiment described by other and/or the embodiment of otherwise arranging (such as, can with other sequence implementation key element).Correspondingly, be to be understood that: only illustrate and describe preferred embodiment and modification thereof, expect to protect the institute in scope of the present invention change and revise.

Claims

1. a device, for delivering power to the equipment with the power line ending at standard plug, described device comprises:

First standard socket, for receiving standard plug;

First end parts, for the first power interconnection;

The second end part, for interconnecting with second source; And

Switch, for interconnecting described first standard socket and described first end parts or described the second end part selectively.

2. device as claimed in claim 1, wherein said switching manipulation for sensing the power breakdown from a power supply in described first and second power supplys, and for switching the connection of described first standard socket in response to described interruption.

3. device as claimed in claim 1, also comprises the second standard socket for receiving standard plug, by described second standard socket and described switched fabric, to receive electric power from described first power supply or described second source selectively.

4. device as claimed in claim 1, is wherein adapted for described device and is inserted into standard socket, and described standard socket is configured to receive electric power from described first and second power supplys.

5. device as claimed in claim 1, be wherein adapted for by described device and be inserted into power panel, described power panel has the socket be associated with the first and second power supplys.

6. device as claimed in claim 1, also comprise the power panel interconnected with described first standard socket, described power panel comprises the multiple sockets for receiving standard plug.

7. device as claimed in claim 1, wherein said equipment is the electric of data center or electronic equipment.

8. device as claimed in claim 1, wherein said equipment is Medical Devices.

9. device as claimed in claim 1, is wherein incorporated to standard socket by described device.

10. device as claimed in claim 1, wherein said device comprises wall scroll power line.

11. 1 kinds of methods, for delivering power to the equipment with the power line ending at standard plug, said method comprising the steps of:

There is provided module, this module comprises modular jack for receiving described standard plug and the switch for the connection that switches described modular jack;

Described module be connected with the first and second power supplys first connects; And

Be connected with described modular jack by described standard plug second connects.

12. methods as claimed in claim 11, wherein said first step connected the standard electrical outlet that provides and have the first and second standard sockets is provided and by described model calling to described first and second standard sockets, described first and second standard sockets are configured to provide electric power from described first and second power supplys respectively.

13. methods as claimed in claim 11, wherein said first step connected the power panel that provides and have the first and second plate sockets is provided and by described model calling to described first and second plate sockets, described first and second plate sockets are configured to provide electric power from the first and second power supplys respectively.

14. methods as claimed in claim 11, the wherein said second step connected comprises described standard plug is directly inserted into described modular jack.

15. methods as claimed in claim 11, the wherein said second step connected comprises the plate socket that described standard plug is inserted into power panel and via described module by described power panel and described first and second power interconnection.

16. methods as claimed in claim 11, also comprise the step via described module, the network equipment of data center being connected to described first and second power supplys.

17. methods as claimed in claim 11, also comprise the step via described module, Medical Devices being connected to described first and second power supplys.

18. 1 kinds of methods, for delivering power to the equipment with the power line ending at standard plug, said method comprising the steps of:

Be provided for the first standard socket receiving described standard plug, selectively described first standard socket be associated with the first and second power supplys via switch;

Sense the power breakdown from a power supply in described first and second power supplys; And

In response to described interruption, change described switch to supply electrical power to described first standard socket from another power supply in described first and second power supplys.

19. methods as claimed in claim 18, further comprising the steps of:

Sense the power recovery from the described power supply in described first and second power supplys; And

In response to described recovery, change described switch to supply electrical power to described first standard socket from the described power supply in the first and second power supplys.

20. methods as claimed in claim 18, also comprise the step being provided for the second standard socket receiving standard plug, are associated by described second standard socket selectively via described switch with described first and second power supplys.

21. methods as claimed in claim 18, wherein said equipment comprises power panel, and described power panel comprises multiple socket for receiving standard plug.

22. methods as claimed in claim 18, wherein said equipment is the network equipment or the Medical Devices of data center.

23. 1 kinds of devices, for delivering power to the equipment with the power line ending at standard plug, described device comprises:

First standard socket, for receiving standard plug;

First end parts, for the first power interconnection;

The second end part, for interconnecting with second source; And

Switch, for selectively described first standard socket and described first end parts or described the second end part being interconnected, wherein said switching manipulation for sensing the power quality of a power supply in described first and second power supplys, and for switching the connection of described first standard socket in response to described power quality.

24. devices as claimed in claim 23, wherein said switch comprises and is placed in described device and is coupled to the circuit of described first and second end pieces and described standard socket, and wherein said circuitry operative is for the described power quality that senses on one of described end pieces and automatically described standard socket is couple to one of described end pieces according to the value of described power quality.

25. devices as claimed in claim 24, wherein said circuitry operative is used for automatically described standard socket being couple to one of described end pieces according to the value of described power quality after predetermined amount of time.

26. devices as claimed in claim 24, wherein said circuit comprises one or more relay.

27. devices as claimed in claim 24, wherein said circuit comprises timer.

28. devices as claimed in claim 24, wherein said circuit comprises the optically coupled isolation circuit for isolating described first and second power supplys.

29. devices as claimed in claim 24, wherein said circuitry operative was used for automatically described standard socket being couple to one of described end pieces according to the value of described power quality within the time period being less than about 10 milliseconds.

30. devices as claimed in claim 23, wherein said power quality comprises at least one in interruption, voltage drop, voltage fluctuation and frequency change.

31. devices as claimed in claim 23, wherein said device has the average power being less than about 5 watts.

32. devices as claimed in claim 23, wherein said device has the average power dissipation being less than about 200 milliwatts.

33. devices as claimed in claim 23, also comprise the second standard socket for receiving standard plug, by described second standard socket and described switched fabric, to receive electric power from described first power supply or described second source selectively.

34. devices as claimed in claim 23, are wherein adapted for described device and are inserted into standard socket, and described standard socket is configured to receive electric power from described first and second power supplys.

35. devices as claimed in claim 23, are wherein adapted for the power panel being inserted into and having the socket be associated with the first and second power supplys by described device.

36. devices as claimed in claim 23, also comprise the power panel interconnected with described first standard socket, described power panel comprises multiple socket for receiving standard plug.

37. devices as claimed in claim 23, wherein said equipment is the electric of data center or electronic equipment.

38. devices as claimed in claim 23, wherein said equipment is Medical Devices.

39. devices as claimed in claim 23, are wherein incorporated to standard socket by described device.

40. devices as claimed in claim 23, wherein said equipment comprises wall scroll power line.